First, an overview of high-pressure valve At present, EHV technology has been widely used in petrochemical, chemical industry, isostatic pressing, processing technology, superhard material manufacturing, high static pressure extrusion, metal forming, powder metallurgy, geophysics and geophysics research and other fields. Due to the widespread use of high-pressure technology, the performance of ultra-high pressure valves in EHV systems directly affects the safety, reliability, work efficiency and service life of the entire system. In those systems that require frequent pressurization and pressure relief, it is particularly important. The main reasons for the failure of the ultra-high pressure valve are cavitation erosion and erosion wear, and there are many factors that affect cavitation erosion and erosion. They mainly include the mechanical properties of materials, hydrodynamic factors and environmental impact. There are many ways to improve the ability of a valve to resist cavitation and erosion. Second, high-pressure valve material selection In order to improve the ability of ultrahigh-pressure valve to resist erosion and abrasion, the corrosion resistant materials are usually selected: 1, materials with high hardness 2, materials with high fatigue strength. 3, high yield point, good stability of the material 4, acid corrosion protective film material In order to extend the service life of high-pressure valves, but also consider the working conditions of the environment. 1, when installing or replacing the needle valve should be properly cleaned. So as not to bring debris, accelerate the needle valve wear. 2, to avoid the valve working under high temperature medium, the medium temperature of the valve life is greatly affected, the higher the medium temperature, the shorter the life of the valve, and vice versa longer. Therefore, at the relief valve plus cooling device, but also significantly improve the service life of the valve. 3, to avoid the valve in the small opening of the work, if the valve opening small lift or open slow motion, work in a small opening, throttle small gap, serious erosion, appropriate to increase the locking mechanism of the pitch, increase Opening speed and lift, work opening increases, so that the throttle gap, scouring weakened, can improve the service life. 4, timing filter high-pressure medium and cleaning filters, plus liquid filters to be applied filter. Frequently used, should be shortened cycle. Regularly clean the tank, while replacing the new media, according to the actual work of the equipment can shorten the cleaning and oil change intervals. 5, under different working pressure, use the corresponding sealing pressure, select the appropriate seal than the pressure, the use of torque wrench lock, or to achieve automatic control of the valve, so as to avoid valve wear and tear in the absence of erosion and valve seat Extruded and damaged. Custom Airway,Polyethylene Oropharyngeal Airway,Flexible Polyethylene Oropharyngeal Airway,Medical Oropharyngeal Airway Product Shaoxing Lifecare International Trading Co., Ltd , https://www.sx-lifecare.com
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